Car-brake.



O. 0. BYRD.

OAR BRAKE.

APPLICATION FILED JUNE 29, 1912.

Patented sept. 16,1913.

2 SHEETS-SHBET 1.

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0. 0. BYRD.

GAR BRAKE.

APPLIUATION FILED JUNE 29, 1912.

Patented Sept. 16, 1913.

2 SHEETSSHBET 2,

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"OSCA O. BYBD, F SLATER, MISSOURI, ASSIGNOR QF ONE-FOURTH TO SAMUEL F. WHITTAKER AND ONE-FOURTH TO SALLIE F. WHITTAKR, 0F PRESCOTRARIZONA, AND ONE-HALF `T0'J'AlVIllS W.' THOMPSON, OF N13-iffY ORLEANS, LOUISIANA.

CAR-BRAKE.

To @ZZ 'whom t may concern:`

` 'Be it known that' I, OsoARVO. BYRD, citizen of the United States, residing at Slater,

' in thecounty of Saline and-State of Missouri, have Vinvented certain new and Auseful Improvements. in Car-Brakes, of'which the followingis a specication.

This invention has for its object the provisionof a car brake, the parts of which will be simple in their construction andlarrangement, easily operated to eflectuallyV apply the brake shoes to the car wheels and quickly released therefrom -when'the holding force is removed. 4

The invention is illustrated 'in the accompanying drawings. and consists `in certain novel features which will be particularly pointed out in the claims following the description hereinafter given.

In the drawings Figure 1 is a bottom plan view of a freight car equipped with vation of the brake shoes and parts immediately adjacent thereto; Fig. 4 is an` enlarged plan view of the Vparts shown 1n Fig. 3. Y

The freight car, 1, may be of any wellknown type and is shown in the drawings for illustrative purposes only in order that the nature of my improvements may be more readily understood. Upon the bottom of the car is provided the usual reservolr, 2, and brake cylinder, 3, connected therewith in the usual manner to permit the application of air under pressure to the operating parts of the brake. The piston within the cylinder 3 has its rod 4 extended from the cylinder and pivoted to a lever 5 which 1s provided at its end with an eye 6 for the attachment of a rod running tothe usual hand wheel to permit the application of the brake by hand power.

To the lever 5 are pivotally attached connecting rods 7 which extend in opposite d1- rections from the lever 5 and are pivoted to the free ends of Vfulcrurn levers 8 which are fulcrumed at the ends opposite the said connecting' rods to the bottom of the car. These fulcrurn levers 8 extend in opposite directions from their1respective connecting rods 7, and the brake yrods 9 are pivoted to the said YVfulcrum levers at about the centers thereof so that the two brake rods extending Y Specification of- Letters Patent. i Patgnted Sept-, 1,62 1913, Application med June 29, 1912. sel-iai No.

'meses toward the opposite ends of the car will be brought into the medial longitudinal line of the car. 'The outer ends of the brake rods 9 are formed into eyes or clevises 10 to which are connected links 11 which di verge from the respective brake rods toward have their outer ends equipped with pulleys 12 around which pass the chains 13. These chains 13 pass from the pulleys 12 between guide rollers or pulleys 14 which are mounted upon the upper side of the bolster or truck beam 15, as clearly shown in Figs. 3 and 4. The chains pass around theisaid guide rollers crpulleys 14 and then extend in opposite directions to the brake levers 16 which are fulcrumed in suitable brackets 17 secured to the opposite sides of the beam or bolster 15, as clearly shown. The upper ends of the Vbrake levers 16 are provided `with longitudinal series of openings 18, in any one of which `the ends of the 'chains 13 maybe engaged so that the leverage may be adjusted to the wear of the brake slices 0r any other conditions.

A The supporting brackets 17, in which the brake levers are mounted, consist of standards or securing portions 19 rigidly fastened to the side of the beam or bolster, outstanding arms 20 near the upper ends of said standards 19, and braces 21 rising from the said standards 19 to the said supporting arms 20 and merging into said arms through eyes or bearings 22 formed at the junction therewith. Fulcrum pins 23 are inserted through the said bearings and the brake levers to pivot-ally secure the levers in the brackets, and the lower ends of the brake levers are turned outwardly, as shown at 24, to engage lugs 25 formed on the backs of the brake shoes 26, keys 27 being inserted through the said lugs and the ends of the respective brake levers to secure the brake shoes to the levers. Y

Upon the upper side of the bolster or truck beam 15, I secure a cylindrical housing 28 containing a coiled spring 29 disposed between pistons 30 having their rods 31 extending through the adjacent ends of the housing and pivot-ally attached to the brake levers, as shown.

Pressure being applied to the lever 5 either by hand or by means of compressed air within the brake cylinder 3, the said the opposite ends of the adj aoent truck andV lever Will be swung upon its fulcrum so as to pull upon the connecting rods 7 and thereby 'swing the ulorum levers 8 about their.

ulc'rums so that the brake rods 9 Will be drawn inwardly relative to Vth'e ends of the car. The movement of the brake rods 9 will be imparted directly to the links 11 so that the chains 13 will be drawn toward the central longitudinal line of the car and thereby act upon the upper ends of 'the brake levers 16 so as to swing' the said levers about their fulcrums and force the brake 'shoes againstthe car Wheel-s When the brake will at 'once 'expand and force the pistons 30 outwardly so th'attlre brake levers Will be swung about their ful'erums in the opp'uL site directions to release the brake `shoes from the Wheels. It Will thus be seen that the release of the brakes will be accomplished instantly, so that the Wear up'en the brake. shoes will beminimiz'e'df, and it Will 'also be noted that the/arrangement 'ofthe parts is such as to obtain a direct application of power to the brake levers and cause their positive simultaneous operation.

the liability yorder is greatly reduced.

eopies of 'this ptent 'maybe 'obtaine fm meente eeen, "i551, eaafessiefg tie Washington, D. c.

vvtit i @initie-yns 1 1. In a car brake, the combination of'a support, brake levers ful'crurne'd'uuponV the opposite :sides 'of said support7` guide rollers on the support kloc'etvv'een the upper ends Vof the brake levers, brake rodsimounted upon the car body, means for-,moving saidbrake rods lonofitudinally, links pivoted to the'j outer en s of the brake rods and diverg'in'g support,l brake leversyfulfcrumed upon the opposite sides 'of said support,` guide rollers on the support'bettveen the upper endsof the brake levers, brake rods linount'ed upon the car body, for inovingsaid brake rods longitudinally, links pivoted tev the 'outer en'ds of the brake rods and -diverging therefrom, rollers carried by the outer'ends fof the li-nits, and flexible connections trained around the said rollers and v'passing there'- from between and around the gui-de rollers and secured to the upper ends of the brake levers.

esenti o.) Brien. te. Witnessesp' j C. O. Gamers, E B. PARKS. Y

"eemaie'sionei er retenes',

In testimony whereof I afihx my signature- 4 i in presence of tvvdvvitnesses. 4The apparatus is 'composed 'of very ffew parts which are simple in their construction 1 and lcompact in their arrangement, so that of the 4brake getting out of? 

